drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c

   1 /*
   2  * Copyright 2011 Advanced Micro Devices, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  16  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  17  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  18  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  19  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  * The above copyright notice and this permission notice (including the
  22  * next paragraph) shall be included in all copies or substantial portions
  23  * of the Software.
  24  *
  25  */
  26 /*
  27  * Authors:
  28  *    Christian König <deathsimple@vodafone.de>
  29  */
  30
  31 #include <linux/firmware.h>
  32 #include <linux/module.h>
  33 #include <drm/drmP.h>
  34 #include <drm/drm.h>
  35
  36 #include "amdgpu.h"
  37 #include "amdgpu_pm.h"
  38 #include "amdgpu_uvd.h"
  39 #include "cikd.h"
  40 #include "uvd/uvd_4_2_d.h"
  41
  42 /* 1 second timeout */
  43 #define UVD_IDLE_TIMEOUT        msecs_to_jiffies(1000)
  44
  45 /* Firmware versions for VI */
  46 #define FW_1_65_10      ((1 << 24) | (65 << 16) | (10 << 8))
  47 #define FW_1_87_11      ((1 << 24) | (87 << 16) | (11 << 8))
  48 #define FW_1_87_12      ((1 << 24) | (87 << 16) | (12 << 8))
  49 #define FW_1_37_15      ((1 << 24) | (37 << 16) | (15 << 8))
  50
  51 /* Polaris10/11 firmware version */
  52 #define FW_1_66_16      ((1 << 24) | (66 << 16) | (16 << 8))
  53
  54 /* Firmware Names */
  55 #ifdef CONFIG_DRM_AMDGPU_CIK
  56 #define FIRMWARE_BONAIRE        "radeon/bonaire_uvd.bin"
  57 #define FIRMWARE_KABINI "radeon/kabini_uvd.bin"
  58 #define FIRMWARE_KAVERI "radeon/kaveri_uvd.bin"
  59 #define FIRMWARE_HAWAII "radeon/hawaii_uvd.bin"
  60 #define FIRMWARE_MULLINS        "radeon/mullins_uvd.bin"
  61 #endif
  62 #define FIRMWARE_TONGA          "amdgpu/tonga_uvd.bin"
  63 #define FIRMWARE_CARRIZO        "amdgpu/carrizo_uvd.bin"
  64 #define FIRMWARE_FIJI           "amdgpu/fiji_uvd.bin"
  65 #define FIRMWARE_STONEY         "amdgpu/stoney_uvd.bin"
  66 #define FIRMWARE_POLARIS10      "amdgpu/polaris10_uvd.bin"
  67 #define FIRMWARE_POLARIS11      "amdgpu/polaris11_uvd.bin"
  68 #define FIRMWARE_POLARIS12      "amdgpu/polaris12_uvd.bin"
  69 #define FIRMWARE_VEGAM          "amdgpu/vegam_uvd.bin"
  70
  71 #define FIRMWARE_VEGA10         "amdgpu/vega10_uvd.bin"
  72 #define FIRMWARE_VEGA12         "amdgpu/vega12_uvd.bin"
  73 #define FIRMWARE_VEGA20         "amdgpu/vega20_uvd.bin"
  74
  75 /* These are common relative offsets for all asics, from uvd_7_0_offset.h,  */
  76 #define UVD_GPCOM_VCPU_CMD              0x03c3
  77 #define UVD_GPCOM_VCPU_DATA0    0x03c4
  78 #define UVD_GPCOM_VCPU_DATA1    0x03c5
  79 #define UVD_NO_OP                               0x03ff
  80 #define UVD_BASE_SI                             0x3800
  81
  82 /**
  83  * amdgpu_uvd_cs_ctx - Command submission parser context
  84  *
  85  * Used for emulating virtual memory support on UVD 4.2.
  86  */
  87 struct amdgpu_uvd_cs_ctx {
  88         struct amdgpu_cs_parser *parser;
  89         unsigned reg, count;
  90         unsigned data0, data1;
  91         unsigned idx;
  92         unsigned ib_idx;
  93
  94         /* does the IB has a msg command */
  95         bool has_msg_cmd;
  96
  97         /* minimum buffer sizes */
  98         unsigned *buf_sizes;
  99 };
 100
 101 #ifdef CONFIG_DRM_AMDGPU_CIK
 102 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
 103 MODULE_FIRMWARE(FIRMWARE_KABINI);
 104 MODULE_FIRMWARE(FIRMWARE_KAVERI);
 105 MODULE_FIRMWARE(FIRMWARE_HAWAII);
 106 MODULE_FIRMWARE(FIRMWARE_MULLINS);
 107 #endif
 108 MODULE_FIRMWARE(FIRMWARE_TONGA);
 109 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
 110 MODULE_FIRMWARE(FIRMWARE_FIJI);
 111 MODULE_FIRMWARE(FIRMWARE_STONEY);
 112 MODULE_FIRMWARE(FIRMWARE_POLARIS10);
 113 MODULE_FIRMWARE(FIRMWARE_POLARIS11);
 114 MODULE_FIRMWARE(FIRMWARE_POLARIS12);
 115 MODULE_FIRMWARE(FIRMWARE_VEGAM);
 116
 117 MODULE_FIRMWARE(FIRMWARE_VEGA10);
 118 MODULE_FIRMWARE(FIRMWARE_VEGA12);
 119 MODULE_FIRMWARE(FIRMWARE_VEGA20);
 120
 121 static void amdgpu_uvd_idle_work_handler(struct work_struct *work);
 122
 123 int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 124 {
 125         struct amdgpu_ring *ring;
 126         struct drm_sched_rq *rq;
 127         unsigned long bo_size;
 128         const char *fw_name;
 129         const struct common_firmware_header *hdr;
 130         unsigned version_major, version_minor, family_id;
 131         int i, j, r;
 132
 133         INIT_DELAYED_WORK(&adev->uvd.idle_work, amdgpu_uvd_idle_work_handler);
 134
 135         switch (adev->asic_type) {
 136 #ifdef CONFIG_DRM_AMDGPU_CIK
 137         case CHIP_BONAIRE:
 138                 fw_name = FIRMWARE_BONAIRE;
 139                 break;
 140         case CHIP_KABINI:
 141                 fw_name = FIRMWARE_KABINI;
 142                 break;
 143         case CHIP_KAVERI:
 144                 fw_name = FIRMWARE_KAVERI;
 145                 break;
 146         case CHIP_HAWAII:
 147                 fw_name = FIRMWARE_HAWAII;
 148                 break;
 149         case CHIP_MULLINS:
 150                 fw_name = FIRMWARE_MULLINS;
 151                 break;
 152 #endif
 153         case CHIP_TONGA:
 154                 fw_name = FIRMWARE_TONGA;
 155                 break;
 156         case CHIP_FIJI:
 157                 fw_name = FIRMWARE_FIJI;
 158                 break;
 159         case CHIP_CARRIZO:
 160                 fw_name = FIRMWARE_CARRIZO;
 161                 break;
 162         case CHIP_STONEY:
 163                 fw_name = FIRMWARE_STONEY;
 164                 break;
 165         case CHIP_POLARIS10:
 166                 fw_name = FIRMWARE_POLARIS10;
 167                 break;
 168         case CHIP_POLARIS11:
 169                 fw_name = FIRMWARE_POLARIS11;
 170                 break;
 171         case CHIP_POLARIS12:
 172                 fw_name = FIRMWARE_POLARIS12;
 173                 break;
 174         case CHIP_VEGA10:
 175                 fw_name = FIRMWARE_VEGA10;
 176                 break;
 177         case CHIP_VEGA12:
 178                 fw_name = FIRMWARE_VEGA12;
 179                 break;
 180         case CHIP_VEGAM:
 181                 fw_name = FIRMWARE_VEGAM;
 182                 break;
 183         case CHIP_VEGA20:
 184                 fw_name = FIRMWARE_VEGA20;
 185                 break;
 186         default:
 187                 return -EINVAL;
 188         }
 189
 190         r = request_firmware(&adev->uvd.fw, fw_name, adev->dev);
 191         if (r) {
 192                 dev_err(adev->dev, "amdgpu_uvd: Can't load firmware \"%s\"\n",
 193                         fw_name);
 194                 return r;
 195         }
 196
 197         r = amdgpu_ucode_validate(adev->uvd.fw);
 198         if (r) {
 199                 dev_err(adev->dev, "amdgpu_uvd: Can't validate firmware \"%s\"\n",
 200                         fw_name);
 201                 release_firmware(adev->uvd.fw);
 202                 adev->uvd.fw = NULL;
 203                 return r;
 204         }
 205
 206         /* Set the default UVD handles that the firmware can handle */
 207         adev->uvd.max_handles = AMDGPU_DEFAULT_UVD_HANDLES;
 208
 209         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 210         family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
 211         version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
 212         version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
 213         DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
 214                 version_major, version_minor, family_id);
 215
 216         /*
 217          * Limit the number of UVD handles depending on microcode major
 218          * and minor versions. The firmware version which has 40 UVD
 219          * instances support is 1.80. So all subsequent versions should
 220          * also have the same support.
 221          */
 222         if ((version_major > 0x01) ||
 223             ((version_major == 0x01) && (version_minor >= 0x50)))
 224                 adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 225
 226         adev->uvd.fw_version = ((version_major << 24) | (version_minor << 16) |
 227                                 (family_id << 8));
 228
 229         if ((adev->asic_type == CHIP_POLARIS10 ||
 230              adev->asic_type == CHIP_POLARIS11) &&
 231             (adev->uvd.fw_version < FW_1_66_16))
 232                 DRM_ERROR("POLARIS10/11 UVD firmware version %hu.%hu is too old.\n",
 233                           version_major, version_minor);
 234
 235         bo_size = AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
 236                   +  AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles;
 237         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
 238                 bo_size += AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
 239
 240         for (j = 0; j < adev->uvd.num_uvd_inst; j++) {
 241
 242                 r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
 243                                             AMDGPU_GEM_DOMAIN_VRAM, &adev->uvd.inst[j].vcpu_bo,
 244                                             &adev->uvd.inst[j].gpu_addr, &adev->uvd.inst[j].cpu_addr);
 245                 if (r) {
 246                         dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
 247                         return r;
 248                 }
 249
 250                 ring = &adev->uvd.inst[j].ring;
 251                 rq = &ring->sched.sched_rq[DRM_SCHED_PRIORITY_NORMAL];
 252                 r = drm_sched_entity_init(&ring->sched, &adev->uvd.inst[j].entity,
 253                                           rq, NULL);
 254                 if (r != 0) {
 255                         DRM_ERROR("Failed setting up UVD(%d) run queue.\n", j);
 256                         return r;
 257                 }
 258
 259                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 260                         atomic_set(&adev->uvd.inst[j].handles[i], 0);
 261                         adev->uvd.inst[j].filp[i] = NULL;
 262                 }
 263         }
 264         /* from uvd v5.0 HW addressing capacity increased to 64 bits */
 265         if (!amdgpu_device_ip_block_version_cmp(adev, AMD_IP_BLOCK_TYPE_UVD, 5, 0))
 266                 adev->uvd.address_64_bit = true;
 267
 268         switch (adev->asic_type) {
 269         case CHIP_TONGA:
 270                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_65_10;
 271                 break;
 272         case CHIP_CARRIZO:
 273                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_11;
 274                 break;
 275         case CHIP_FIJI:
 276                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_87_12;
 277                 break;
 278         case CHIP_STONEY:
 279                 adev->uvd.use_ctx_buf = adev->uvd.fw_version >= FW_1_37_15;
 280                 break;
 281         default:
 282                 adev->uvd.use_ctx_buf = adev->asic_type >= CHIP_POLARIS10;
 283         }
 284
 285         return 0;
 286 }
 287
 288 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev)
 289 {
 290         int i, j;
 291
 292         for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
 293                 kfree(adev->uvd.inst[j].saved_bo);
 294
 295                 drm_sched_entity_fini(&adev->uvd.inst[j].ring.sched, &adev->uvd.inst[j].entity);
 296
 297                 amdgpu_bo_free_kernel(&adev->uvd.inst[j].vcpu_bo,
 298                                       &adev->uvd.inst[j].gpu_addr,
 299                                       (void **)&adev->uvd.inst[j].cpu_addr);
 300
 301                 amdgpu_ring_fini(&adev->uvd.inst[j].ring);
 302
 303                 for (i = 0; i < AMDGPU_MAX_UVD_ENC_RINGS; ++i)
 304                         amdgpu_ring_fini(&adev->uvd.inst[j].ring_enc[i]);
 305         }
 306         release_firmware(adev->uvd.fw);
 307
 308         return 0;
 309 }
 310
 311 int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 312 {
 313         unsigned size;
 314         void *ptr;
 315         int i, j;
 316
 317         cancel_delayed_work_sync(&adev->uvd.idle_work);
 318
 319         for (j = 0; j < adev->uvd.num_uvd_inst; ++j) {
 320                 if (adev->uvd.inst[j].vcpu_bo == NULL)
 321                         continue;
 322
 323                 /* only valid for physical mode */
 324                 if (adev->asic_type < CHIP_POLARIS10) {
 325                         for (i = 0; i < adev->uvd.max_handles; ++i)
 326                                 if (atomic_read(&adev->uvd.inst[j].handles[i]))
 327                                         break;
 328
 329                         if (i == adev->uvd.max_handles)
 330                                 continue;
 331                 }
 332
 333                 size = amdgpu_bo_size(adev->uvd.inst[j].vcpu_bo);
 334                 ptr = adev->uvd.inst[j].cpu_addr;
 335
 336                 adev->uvd.inst[j].saved_bo = kmalloc(size, GFP_KERNEL);
 337                 if (!adev->uvd.inst[j].saved_bo)
 338                         return -ENOMEM;
 339
 340                 memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size);
 341         }
 342         return 0;
 343 }
 344
 345 int amdgpu_uvd_resume(struct amdgpu_device *adev)
 346 {
 347         unsigned size;
 348         void *ptr;
 349         int i;
 350
 351         for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
 352                 if (adev->uvd.inst[i].vcpu_bo == NULL)
 353                         return -EINVAL;
 354
 355                 size = amdgpu_bo_size(adev->uvd.inst[i].vcpu_bo);
 356                 ptr = adev->uvd.inst[i].cpu_addr;
 357
 358                 if (adev->uvd.inst[i].saved_bo != NULL) {
 359                         memcpy_toio(ptr, adev->uvd.inst[i].saved_bo, size);
 360                         kfree(adev->uvd.inst[i].saved_bo);
 361                         adev->uvd.inst[i].saved_bo = NULL;
 362                 } else {
 363                         const struct common_firmware_header *hdr;
 364                         unsigned offset;
 365
 366                         hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 367                         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
 368                                 offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
 369                                 memcpy_toio(adev->uvd.inst[i].cpu_addr, adev->uvd.fw->data + offset,
 370                                             le32_to_cpu(hdr->ucode_size_bytes));
 371                                 size -= le32_to_cpu(hdr->ucode_size_bytes);
 372                                 ptr += le32_to_cpu(hdr->ucode_size_bytes);
 373                         }
 374                         memset_io(ptr, 0, size);
 375                         /* to restore uvd fence seq */
 376                         amdgpu_fence_driver_force_completion(&adev->uvd.inst[i].ring);
 377                 }
 378         }
 379         return 0;
 380 }
 381
 382 void amdgpu_uvd_free_handles(struct amdgpu_device *adev, struct drm_file *filp)
 383 {
 384         struct amdgpu_ring *ring;
 385         int i, j, r;
 386
 387         for (j = 0; j < adev->uvd.num_uvd_inst; j++) {
 388                 ring = &adev->uvd.inst[j].ring;
 389
 390                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 391                         uint32_t handle = atomic_read(&adev->uvd.inst[j].handles[i]);
 392                         if (handle != 0 && adev->uvd.inst[j].filp[i] == filp) {
 393                                 struct dma_fence *fence;
 394
 395                                 r = amdgpu_uvd_get_destroy_msg(ring, handle,
 396                                                                false, &fence);
 397                                 if (r) {
 398                                         DRM_ERROR("Error destroying UVD(%d) %d!\n", j, r);
 399                                         continue;
 400                                 }
 401
 402                                 dma_fence_wait(fence, false);
 403                                 dma_fence_put(fence);
 404
 405                                 adev->uvd.inst[j].filp[i] = NULL;
 406                                 atomic_set(&adev->uvd.inst[j].handles[i], 0);
 407                         }
 408                 }
 409         }
 410 }
 411
 412 static void amdgpu_uvd_force_into_uvd_segment(struct amdgpu_bo *abo)
 413 {
 414         int i;
 415         for (i = 0; i < abo->placement.num_placement; ++i) {
 416                 abo->placements[i].fpfn = 0 >> PAGE_SHIFT;
 417                 abo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
 418         }
 419 }
 420
 421 static u64 amdgpu_uvd_get_addr_from_ctx(struct amdgpu_uvd_cs_ctx *ctx)
 422 {
 423         uint32_t lo, hi;
 424         uint64_t addr;
 425
 426         lo = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data0);
 427         hi = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->data1);
 428         addr = ((uint64_t)lo) | (((uint64_t)hi) << 32);
 429
 430         return addr;
 431 }
 432
 433 /**
 434  * amdgpu_uvd_cs_pass1 - first parsing round
 435  *
 436  * @ctx: UVD parser context
 437  *
 438  * Make sure UVD message and feedback buffers are in VRAM and
 439  * nobody is violating an 256MB boundary.
 440  */
 441 static int amdgpu_uvd_cs_pass1(struct amdgpu_uvd_cs_ctx *ctx)
 442 {
 443         struct ttm_operation_ctx tctx = { false, false };
 444         struct amdgpu_bo_va_mapping *mapping;
 445         struct amdgpu_bo *bo;
 446         uint32_t cmd;
 447         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 448         int r = 0;
 449
 450         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 451         if (r) {
 452                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 453                 return r;
 454         }
 455
 456         if (!ctx->parser->adev->uvd.address_64_bit) {
 457                 /* check if it's a message or feedback command */
 458                 cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 459                 if (cmd == 0x0 || cmd == 0x3) {
 460                         /* yes, force it into VRAM */
 461                         uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
 462                         amdgpu_ttm_placement_from_domain(bo, domain);
 463                 }
 464                 amdgpu_uvd_force_into_uvd_segment(bo);
 465
 466                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &tctx);
 467         }
 468
 469         return r;
 470 }
 471
 472 /**
 473  * amdgpu_uvd_cs_msg_decode - handle UVD decode message
 474  *
 475  * @msg: pointer to message structure
 476  * @buf_sizes: returned buffer sizes
 477  *
 478  * Peek into the decode message and calculate the necessary buffer sizes.
 479  */
 480 static int amdgpu_uvd_cs_msg_decode(struct amdgpu_device *adev, uint32_t *msg,
 481         unsigned buf_sizes[])
 482 {
 483         unsigned stream_type = msg[4];
 484         unsigned width = msg[6];
 485         unsigned height = msg[7];
 486         unsigned dpb_size = msg[9];
 487         unsigned pitch = msg[28];
 488         unsigned level = msg[57];
 489
 490         unsigned width_in_mb = width / 16;
 491         unsigned height_in_mb = ALIGN(height / 16, 2);
 492         unsigned fs_in_mb = width_in_mb * height_in_mb;
 493
 494         unsigned image_size, tmp, min_dpb_size, num_dpb_buffer;
 495         unsigned min_ctx_size = ~0;
 496
 497         image_size = width * height;
 498         image_size += image_size / 2;
 499         image_size = ALIGN(image_size, 1024);
 500
 501         switch (stream_type) {
 502         case 0: /* H264 */
 503                 switch(level) {
 504                 case 30:
 505                         num_dpb_buffer = 8100 / fs_in_mb;
 506                         break;
 507                 case 31:
 508                         num_dpb_buffer = 18000 / fs_in_mb;
 509                         break;
 510                 case 32:
 511                         num_dpb_buffer = 20480 / fs_in_mb;
 512                         break;
 513                 case 41:
 514                         num_dpb_buffer = 32768 / fs_in_mb;
 515                         break;
 516                 case 42:
 517                         num_dpb_buffer = 34816 / fs_in_mb;
 518                         break;
 519                 case 50:
 520                         num_dpb_buffer = 110400 / fs_in_mb;
 521                         break;
 522                 case 51:
 523                         num_dpb_buffer = 184320 / fs_in_mb;
 524                         break;
 525                 default:
 526                         num_dpb_buffer = 184320 / fs_in_mb;
 527                         break;
 528                 }
 529                 num_dpb_buffer++;
 530                 if (num_dpb_buffer > 17)
 531                         num_dpb_buffer = 17;
 532
 533                 /* reference picture buffer */
 534                 min_dpb_size = image_size * num_dpb_buffer;
 535
 536                 /* macroblock context buffer */
 537                 min_dpb_size += width_in_mb * height_in_mb * num_dpb_buffer * 192;
 538
 539                 /* IT surface buffer */
 540                 min_dpb_size += width_in_mb * height_in_mb * 32;
 541                 break;
 542
 543         case 1: /* VC1 */
 544
 545                 /* reference picture buffer */
 546                 min_dpb_size = image_size * 3;
 547
 548                 /* CONTEXT_BUFFER */
 549                 min_dpb_size += width_in_mb * height_in_mb * 128;
 550
 551                 /* IT surface buffer */
 552                 min_dpb_size += width_in_mb * 64;
 553
 554                 /* DB surface buffer */
 555                 min_dpb_size += width_in_mb * 128;
 556
 557                 /* BP */
 558                 tmp = max(width_in_mb, height_in_mb);
 559                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
 560                 break;
 561
 562         case 3: /* MPEG2 */
 563
 564                 /* reference picture buffer */
 565                 min_dpb_size = image_size * 3;
 566                 break;
 567
 568         case 4: /* MPEG4 */
 569
 570                 /* reference picture buffer */
 571                 min_dpb_size = image_size * 3;
 572
 573                 /* CM */
 574                 min_dpb_size += width_in_mb * height_in_mb * 64;
 575
 576                 /* IT surface buffer */
 577                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
 578                 break;
 579
 580         case 7: /* H264 Perf */
 581                 switch(level) {
 582                 case 30:
 583                         num_dpb_buffer = 8100 / fs_in_mb;
 584                         break;
 585                 case 31:
 586                         num_dpb_buffer = 18000 / fs_in_mb;
 587                         break;
 588                 case 32:
 589                         num_dpb_buffer = 20480 / fs_in_mb;
 590                         break;
 591                 case 41:
 592                         num_dpb_buffer = 32768 / fs_in_mb;
 593                         break;
 594                 case 42:
 595                         num_dpb_buffer = 34816 / fs_in_mb;
 596                         break;
 597                 case 50:
 598                         num_dpb_buffer = 110400 / fs_in_mb;
 599                         break;
 600                 case 51:
 601                         num_dpb_buffer = 184320 / fs_in_mb;
 602                         break;
 603                 default:
 604                         num_dpb_buffer = 184320 / fs_in_mb;
 605                         break;
 606                 }
 607                 num_dpb_buffer++;
 608                 if (num_dpb_buffer > 17)
 609                         num_dpb_buffer = 17;
 610
 611                 /* reference picture buffer */
 612                 min_dpb_size = image_size * num_dpb_buffer;
 613
 614                 if (!adev->uvd.use_ctx_buf){
 615                         /* macroblock context buffer */
 616                         min_dpb_size +=
 617                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 618
 619                         /* IT surface buffer */
 620                         min_dpb_size += width_in_mb * height_in_mb * 32;
 621                 } else {
 622                         /* macroblock context buffer */
 623                         min_ctx_size =
 624                                 width_in_mb * height_in_mb * num_dpb_buffer * 192;
 625                 }
 626                 break;
 627
 628         case 8: /* MJPEG */
 629                 min_dpb_size = 0;
 630                 break;
 631
 632         case 16: /* H265 */
 633                 image_size = (ALIGN(width, 16) * ALIGN(height, 16) * 3) / 2;
 634                 image_size = ALIGN(image_size, 256);
 635
 636                 num_dpb_buffer = (le32_to_cpu(msg[59]) & 0xff) + 2;
 637                 min_dpb_size = image_size * num_dpb_buffer;
 638                 min_ctx_size = ((width + 255) / 16) * ((height + 255) / 16)
 639                                            * 16 * num_dpb_buffer + 52 * 1024;
 640                 break;
 641
 642         default:
 643                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
 644                 return -EINVAL;
 645         }
 646
 647         if (width > pitch) {
 648                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
 649                 return -EINVAL;
 650         }
 651
 652         if (dpb_size < min_dpb_size) {
 653                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
 654                           dpb_size, min_dpb_size);
 655                 return -EINVAL;
 656         }
 657
 658         buf_sizes[0x1] = dpb_size;
 659         buf_sizes[0x2] = image_size;
 660         buf_sizes[0x4] = min_ctx_size;
 661         return 0;
 662 }
 663
 664 /**
 665  * amdgpu_uvd_cs_msg - handle UVD message
 666  *
 667  * @ctx: UVD parser context
 668  * @bo: buffer object containing the message
 669  * @offset: offset into the buffer object
 670  *
 671  * Peek into the UVD message and extract the session id.
 672  * Make sure that we don't open up to many sessions.
 673  */
 674 static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx,
 675                              struct amdgpu_bo *bo, unsigned offset)
 676 {
 677         struct amdgpu_device *adev = ctx->parser->adev;
 678         int32_t *msg, msg_type, handle;
 679         void *ptr;
 680         long r;
 681         int i;
 682         uint32_t ip_instance = ctx->parser->job->ring->me;
 683
 684         if (offset & 0x3F) {
 685                 DRM_ERROR("UVD(%d) messages must be 64 byte aligned!\n", ip_instance);
 686                 return -EINVAL;
 687         }
 688
 689         r = amdgpu_bo_kmap(bo, &ptr);
 690         if (r) {
 691                 DRM_ERROR("Failed mapping the UVD(%d) message (%ld)!\n", ip_instance, r);
 692                 return r;
 693         }
 694
 695         msg = ptr + offset;
 696
 697         msg_type = msg[1];
 698         handle = msg[2];
 699
 700         if (handle == 0) {
 701                 DRM_ERROR("Invalid UVD(%d) handle!\n", ip_instance);
 702                 return -EINVAL;
 703         }
 704
 705         switch (msg_type) {
 706         case 0:
 707                 /* it's a create msg, calc image size (width * height) */
 708                 amdgpu_bo_kunmap(bo);
 709
 710                 /* try to alloc a new handle */
 711                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 712                         if (atomic_read(&adev->uvd.inst[ip_instance].handles[i]) == handle) {
 713                                 DRM_ERROR("(%d)Handle 0x%x already in use!\n", ip_instance, handle);
 714                                 return -EINVAL;
 715                         }
 716
 717                         if (!atomic_cmpxchg(&adev->uvd.inst[ip_instance].handles[i], 0, handle)) {
 718                                 adev->uvd.inst[ip_instance].filp[i] = ctx->parser->filp;
 719                                 return 0;
 720                         }
 721                 }
 722
 723                 DRM_ERROR("No more free UVD(%d) handles!\n", ip_instance);
 724                 return -ENOSPC;
 725
 726         case 1:
 727                 /* it's a decode msg, calc buffer sizes */
 728                 r = amdgpu_uvd_cs_msg_decode(adev, msg, ctx->buf_sizes);
 729                 amdgpu_bo_kunmap(bo);
 730                 if (r)
 731                         return r;
 732
 733                 /* validate the handle */
 734                 for (i = 0; i < adev->uvd.max_handles; ++i) {
 735                         if (atomic_read(&adev->uvd.inst[ip_instance].handles[i]) == handle) {
 736                                 if (adev->uvd.inst[ip_instance].filp[i] != ctx->parser->filp) {
 737                                         DRM_ERROR("UVD(%d) handle collision detected!\n", ip_instance);
 738                                         return -EINVAL;
 739                                 }
 740                                 return 0;
 741                         }
 742                 }
 743
 744                 DRM_ERROR("Invalid UVD(%d) handle 0x%x!\n", ip_instance, handle);
 745                 return -ENOENT;
 746
 747         case 2:
 748                 /* it's a destroy msg, free the handle */
 749                 for (i = 0; i < adev->uvd.max_handles; ++i)
 750                         atomic_cmpxchg(&adev->uvd.inst[ip_instance].handles[i], handle, 0);
 751                 amdgpu_bo_kunmap(bo);
 752                 return 0;
 753
 754         default:
 755                 DRM_ERROR("Illegal UVD(%d) message type (%d)!\n", ip_instance, msg_type);
 756                 return -EINVAL;
 757         }
 758         BUG();
 759         return -EINVAL;
 760 }
 761
 762 /**
 763  * amdgpu_uvd_cs_pass2 - second parsing round
 764  *
 765  * @ctx: UVD parser context
 766  *
 767  * Patch buffer addresses, make sure buffer sizes are correct.
 768  */
 769 static int amdgpu_uvd_cs_pass2(struct amdgpu_uvd_cs_ctx *ctx)
 770 {
 771         struct amdgpu_bo_va_mapping *mapping;
 772         struct amdgpu_bo *bo;
 773         uint32_t cmd;
 774         uint64_t start, end;
 775         uint64_t addr = amdgpu_uvd_get_addr_from_ctx(ctx);
 776         int r;
 777
 778         r = amdgpu_cs_find_mapping(ctx->parser, addr, &bo, &mapping);
 779         if (r) {
 780                 DRM_ERROR("Can't find BO for addr 0x%08Lx\n", addr);
 781                 return r;
 782         }
 783
 784         start = amdgpu_bo_gpu_offset(bo);
 785
 786         end = (mapping->last + 1 - mapping->start);
 787         end = end * AMDGPU_GPU_PAGE_SIZE + start;
 788
 789         addr -= mapping->start * AMDGPU_GPU_PAGE_SIZE;
 790         start += addr;
 791
 792         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data0,
 793                             lower_32_bits(start));
 794         amdgpu_set_ib_value(ctx->parser, ctx->ib_idx, ctx->data1,
 795                             upper_32_bits(start));
 796
 797         cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx) >> 1;
 798         if (cmd < 0x4) {
 799                 if ((end - start) < ctx->buf_sizes[cmd]) {
 800                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 801                                   (unsigned)(end - start),
 802                                   ctx->buf_sizes[cmd]);
 803                         return -EINVAL;
 804                 }
 805
 806         } else if (cmd == 0x206) {
 807                 if ((end - start) < ctx->buf_sizes[4]) {
 808                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
 809                                           (unsigned)(end - start),
 810                                           ctx->buf_sizes[4]);
 811                         return -EINVAL;
 812                 }
 813         } else if ((cmd != 0x100) && (cmd != 0x204)) {
 814                 DRM_ERROR("invalid UVD command %X!\n", cmd);
 815                 return -EINVAL;
 816         }
 817
 818         if (!ctx->parser->adev->uvd.address_64_bit) {
 819                 if ((start >> 28) != ((end - 1) >> 28)) {
 820                         DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 821                                   start, end);
 822                         return -EINVAL;
 823                 }
 824
 825                 if ((cmd == 0 || cmd == 0x3) &&
 826                     (start >> 28) != (ctx->parser->adev->uvd.inst->gpu_addr >> 28)) {
 827                         DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
 828                                   start, end);
 829                         return -EINVAL;
 830                 }
 831         }
 832
 833         if (cmd == 0) {
 834                 ctx->has_msg_cmd = true;
 835                 r = amdgpu_uvd_cs_msg(ctx, bo, addr);
 836                 if (r)
 837                         return r;
 838         } else if (!ctx->has_msg_cmd) {
 839                 DRM_ERROR("Message needed before other commands are send!\n");
 840                 return -EINVAL;
 841         }
 842
 843         return 0;
 844 }
 845
 846 /**
 847  * amdgpu_uvd_cs_reg - parse register writes
 848  *
 849  * @ctx: UVD parser context
 850  * @cb: callback function
 851  *
 852  * Parse the register writes, call cb on each complete command.
 853  */
 854 static int amdgpu_uvd_cs_reg(struct amdgpu_uvd_cs_ctx *ctx,
 855                              int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 856 {
 857         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 858         int i, r;
 859
 860         ctx->idx++;
 861         for (i = 0; i <= ctx->count; ++i) {
 862                 unsigned reg = ctx->reg + i;
 863
 864                 if (ctx->idx >= ib->length_dw) {
 865                         DRM_ERROR("Register command after end of CS!\n");
 866                         return -EINVAL;
 867                 }
 868
 869                 switch (reg) {
 870                 case mmUVD_GPCOM_VCPU_DATA0:
 871                         ctx->data0 = ctx->idx;
 872                         break;
 873                 case mmUVD_GPCOM_VCPU_DATA1:
 874                         ctx->data1 = ctx->idx;
 875                         break;
 876                 case mmUVD_GPCOM_VCPU_CMD:
 877                         r = cb(ctx);
 878                         if (r)
 879                                 return r;
 880                         break;
 881                 case mmUVD_ENGINE_CNTL:
 882                 case mmUVD_NO_OP:
 883                         break;
 884                 default:
 885                         DRM_ERROR("Invalid reg 0x%X!\n", reg);
 886                         return -EINVAL;
 887                 }
 888                 ctx->idx++;
 889         }
 890         return 0;
 891 }
 892
 893 /**
 894  * amdgpu_uvd_cs_packets - parse UVD packets
 895  *
 896  * @ctx: UVD parser context
 897  * @cb: callback function
 898  *
 899  * Parse the command stream packets.
 900  */
 901 static int amdgpu_uvd_cs_packets(struct amdgpu_uvd_cs_ctx *ctx,
 902                                  int (*cb)(struct amdgpu_uvd_cs_ctx *ctx))
 903 {
 904         struct amdgpu_ib *ib = &ctx->parser->job->ibs[ctx->ib_idx];
 905         int r;
 906
 907         for (ctx->idx = 0 ; ctx->idx < ib->length_dw; ) {
 908                 uint32_t cmd = amdgpu_get_ib_value(ctx->parser, ctx->ib_idx, ctx->idx);
 909                 unsigned type = CP_PACKET_GET_TYPE(cmd);
 910                 switch (type) {
 911                 case PACKET_TYPE0:
 912                         ctx->reg = CP_PACKET0_GET_REG(cmd);
 913                         ctx->count = CP_PACKET_GET_COUNT(cmd);
 914                         r = amdgpu_uvd_cs_reg(ctx, cb);
 915                         if (r)
 916                                 return r;
 917                         break;
 918                 case PACKET_TYPE2:
 919                         ++ctx->idx;
 920                         break;
 921                 default:
 922                         DRM_ERROR("Unknown packet type %d !\n", type);
 923                         return -EINVAL;
 924                 }
 925         }
 926         return 0;
 927 }
 928
 929 /**
 930  * amdgpu_uvd_ring_parse_cs - UVD command submission parser
 931  *
 932  * @parser: Command submission parser context
 933  *
 934  * Parse the command stream, patch in addresses as necessary.
 935  */
 936 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx)
 937 {
 938         struct amdgpu_uvd_cs_ctx ctx = {};
 939         unsigned buf_sizes[] = {
 940                 [0x00000000]    =       2048,
 941                 [0x00000001]    =       0xFFFFFFFF,
 942                 [0x00000002]    =       0xFFFFFFFF,
 943                 [0x00000003]    =       2048,
 944                 [0x00000004]    =       0xFFFFFFFF,
 945         };
 946         struct amdgpu_ib *ib = &parser->job->ibs[ib_idx];
 947         int r;
 948
 949         parser->job->vm = NULL;
 950         ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
 951
 952         if (ib->length_dw % 16) {
 953                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
 954                           ib->length_dw);
 955                 return -EINVAL;
 956         }
 957
 958         ctx.parser = parser;
 959         ctx.buf_sizes = buf_sizes;
 960         ctx.ib_idx = ib_idx;
 961
 962         /* first round only required on chips without UVD 64 bit address support */
 963         if (!parser->adev->uvd.address_64_bit) {
 964                 /* first round, make sure the buffers are actually in the UVD segment */
 965                 r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass1);
 966                 if (r)
 967                         return r;
 968         }
 969
 970         /* second round, patch buffer addresses into the command stream */
 971         r = amdgpu_uvd_cs_packets(&ctx, amdgpu_uvd_cs_pass2);
 972         if (r)
 973                 return r;
 974
 975         if (!ctx.has_msg_cmd) {
 976                 DRM_ERROR("UVD-IBs need a msg command!\n");
 977                 return -EINVAL;
 978         }
 979
 980         return 0;
 981 }
 982
 983 static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
 984                                bool direct, struct dma_fence **fence)
 985 {
 986         struct amdgpu_device *adev = ring->adev;
 987         struct dma_fence *f = NULL;
 988         struct amdgpu_job *job;
 989         struct amdgpu_ib *ib;
 990         uint32_t data[4];
 991         uint64_t addr;
 992         long r;
 993         int i;
 994         unsigned offset_idx = 0;
 995         unsigned offset[3] = { UVD_BASE_SI, 0, 0 };
 996
 997         amdgpu_bo_kunmap(bo);
 998         amdgpu_bo_unpin(bo);
 999
1000         if (!ring->adev->uvd.address_64_bit) {
1001                 struct ttm_operation_ctx ctx = { true, false };
1002
1003                 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
1004                 amdgpu_uvd_force_into_uvd_segment(bo);
1005                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
1006                 if (r)
1007                         goto err;
1008         }
1009
1010         r = amdgpu_job_alloc_with_ib(adev, 64, &job);
1011         if (r)
1012                 goto err;
1013
1014         if (adev->asic_type >= CHIP_VEGA10) {
1015                 offset_idx = 1 + ring->me;
1016                 offset[1] = adev->reg_offset[UVD_HWIP][0][1];
1017                 offset[2] = adev->reg_offset[UVD_HWIP][1][1];
1018         }
1019
1020         data[0] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_DATA0, 0);
1021         data[1] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_DATA1, 0);
1022         data[2] = PACKET0(offset[offset_idx] + UVD_GPCOM_VCPU_CMD, 0);
1023         data[3] = PACKET0(offset[offset_idx] + UVD_NO_OP, 0);
1024
1025         ib = &job->ibs[0];
1026         addr = amdgpu_bo_gpu_offset(bo);
1027         ib->ptr[0] = data[0];
1028         ib->ptr[1] = addr;
1029         ib->ptr[2] = data[1];
1030         ib->ptr[3] = addr >> 32;
1031         ib->ptr[4] = data[2];
1032         ib->ptr[5] = 0;
1033         for (i = 6; i < 16; i += 2) {
1034                 ib->ptr[i] = data[3];
1035                 ib->ptr[i+1] = 0;
1036         }
1037         ib->length_dw = 16;
1038
1039         if (direct) {
1040                 r = reservation_object_wait_timeout_rcu(bo->tbo.resv,
1041                                                         true, false,
1042                                                         msecs_to_jiffies(10));
1043                 if (r == 0)
1044                         r = -ETIMEDOUT;
1045                 if (r < 0)
1046                         goto err_free;
1047
1048                 r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
1049                 job->fence = dma_fence_get(f);
1050                 if (r)
1051                         goto err_free;
1052
1053                 amdgpu_job_free(job);
1054         } else {
1055                 r = amdgpu_sync_resv(adev, &job->sync, bo->tbo.resv,
1056                                      AMDGPU_FENCE_OWNER_UNDEFINED, false);
1057                 if (r)
1058                         goto err_free;
1059
1060                 r = amdgpu_job_submit(job, ring, &adev->uvd.inst[ring->me].entity,
1061                                       AMDGPU_FENCE_OWNER_UNDEFINED, &f);
1062                 if (r)
1063                         goto err_free;
1064         }
1065
1066         amdgpu_bo_fence(bo, f, false);
1067         amdgpu_bo_unreserve(bo);
1068         amdgpu_bo_unref(&bo);
1069
1070         if (fence)
1071                 *fence = dma_fence_get(f);
1072         dma_fence_put(f);
1073
1074         return 0;
1075
1076 err_free:
1077         amdgpu_job_free(job);
1078
1079 err:
1080         amdgpu_bo_unreserve(bo);
1081         amdgpu_bo_unref(&bo);
1082         return r;
1083 }
1084
1085 /* multiple fence commands without any stream commands in between can
1086    crash the vcpu so just try to emmit a dummy create/destroy msg to
1087    avoid this */
1088 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
1089                               struct dma_fence **fence)
1090 {
1091         struct amdgpu_device *adev = ring->adev;
1092         struct amdgpu_bo *bo = NULL;
1093         uint32_t *msg;
1094         int r, i;
1095
1096         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1097                                       AMDGPU_GEM_DOMAIN_VRAM,
1098                                       &bo, NULL, (void **)&msg);
1099         if (r)
1100                 return r;
1101
1102         /* stitch together an UVD create msg */
1103         msg[0] = cpu_to_le32(0x00000de4);
1104         msg[1] = cpu_to_le32(0x00000000);
1105         msg[2] = cpu_to_le32(handle);
1106         msg[3] = cpu_to_le32(0x00000000);
1107         msg[4] = cpu_to_le32(0x00000000);
1108         msg[5] = cpu_to_le32(0x00000000);
1109         msg[6] = cpu_to_le32(0x00000000);
1110         msg[7] = cpu_to_le32(0x00000780);
1111         msg[8] = cpu_to_le32(0x00000440);
1112         msg[9] = cpu_to_le32(0x00000000);
1113         msg[10] = cpu_to_le32(0x01b37000);
1114         for (i = 11; i < 1024; ++i)
1115                 msg[i] = cpu_to_le32(0x0);
1116
1117         return amdgpu_uvd_send_msg(ring, bo, true, fence);
1118 }
1119
1120 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
1121                                bool direct, struct dma_fence **fence)
1122 {
1123         struct amdgpu_device *adev = ring->adev;
1124         struct amdgpu_bo *bo = NULL;
1125         uint32_t *msg;
1126         int r, i;
1127
1128         r = amdgpu_bo_create_reserved(adev, 1024, PAGE_SIZE,
1129                                       AMDGPU_GEM_DOMAIN_VRAM,
1130                                       &bo, NULL, (void **)&msg);
1131         if (r)
1132                 return r;
1133
1134         /* stitch together an UVD destroy msg */
1135         msg[0] = cpu_to_le32(0x00000de4);
1136         msg[1] = cpu_to_le32(0x00000002);
1137         msg[2] = cpu_to_le32(handle);
1138         msg[3] = cpu_to_le32(0x00000000);
1139         for (i = 4; i < 1024; ++i)
1140                 msg[i] = cpu_to_le32(0x0);
1141
1142         return amdgpu_uvd_send_msg(ring, bo, direct, fence);
1143 }
1144
1145 static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
1146 {
1147         struct amdgpu_device *adev =
1148                 container_of(work, struct amdgpu_device, uvd.idle_work.work);
1149         unsigned fences = 0, i, j;
1150
1151         for (i = 0; i < adev->uvd.num_uvd_inst; ++i) {
1152                 fences += amdgpu_fence_count_emitted(&adev->uvd.inst[i].ring);
1153                 for (j = 0; j < adev->uvd.num_enc_rings; ++j) {
1154                         fences += amdgpu_fence_count_emitted(&adev->uvd.inst[i].ring_enc[j]);
1155                 }
1156         }
1157
1158         if (fences == 0) {
1159                 if (adev->pm.dpm_enabled) {
1160                         amdgpu_dpm_enable_uvd(adev, false);
1161                 } else {
1162                         amdgpu_asic_set_uvd_clocks(adev, 0, 0);
1163                         /* shutdown the UVD block */
1164                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1165                                                                AMD_PG_STATE_GATE);
1166                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1167                                                                AMD_CG_STATE_GATE);
1168                 }
1169         } else {
1170                 schedule_delayed_work(&adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1171         }
1172 }
1173
1174 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
1175 {
1176         struct amdgpu_device *adev = ring->adev;
1177         bool set_clocks;
1178
1179         if (amdgpu_sriov_vf(adev))
1180                 return;
1181
1182         set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
1183         if (set_clocks) {
1184                 if (adev->pm.dpm_enabled) {
1185                         amdgpu_dpm_enable_uvd(adev, true);
1186                 } else {
1187                         amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
1188                         amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1189                                                                AMD_CG_STATE_UNGATE);
1190                         amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
1191                                                                AMD_PG_STATE_UNGATE);
1192                 }
1193         }
1194 }
1195
1196 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring)
1197 {
1198         if (!amdgpu_sriov_vf(ring->adev))
1199                 schedule_delayed_work(&ring->adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
1200 }
1201
1202 /**
1203  * amdgpu_uvd_ring_test_ib - test ib execution
1204  *
1205  * @ring: amdgpu_ring pointer
1206  *
1207  * Test if we can successfully execute an IB
1208  */
1209 int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout)
1210 {
1211         struct dma_fence *fence;
1212         long r;
1213         uint32_t ip_instance = ring->me;
1214
1215         r = amdgpu_uvd_get_create_msg(ring, 1, NULL);
1216         if (r) {
1217                 DRM_ERROR("amdgpu: (%d)failed to get create msg (%ld).\n", ip_instance, r);
1218                 goto error;
1219         }
1220
1221         r = amdgpu_uvd_get_destroy_msg(ring, 1, true, &fence);
1222         if (r) {
1223                 DRM_ERROR("amdgpu: (%d)failed to get destroy ib (%ld).\n", ip_instance, r);
1224                 goto error;
1225         }
1226
1227         r = dma_fence_wait_timeout(fence, false, timeout);
1228         if (r == 0) {
1229                 DRM_ERROR("amdgpu: (%d)IB test timed out.\n", ip_instance);
1230                 r = -ETIMEDOUT;
1231         } else if (r < 0) {
1232                 DRM_ERROR("amdgpu: (%d)fence wait failed (%ld).\n", ip_instance, r);
1233         } else {
1234                 DRM_DEBUG("ib test on (%d)ring %d succeeded\n", ip_instance, ring->idx);
1235                 r = 0;
1236         }
1237
1238         dma_fence_put(fence);
1239
1240 error:
1241         return r;
1242 }
1243
1244 /**
1245  * amdgpu_uvd_used_handles - returns used UVD handles
1246  *
1247  * @adev: amdgpu_device pointer
1248  *
1249  * Returns the number of UVD handles in use
1250  */
1251 uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev)
1252 {
1253         unsigned i;
1254         uint32_t used_handles = 0;
1255
1256         for (i = 0; i < adev->uvd.max_handles; ++i) {
1257                 /*
1258                  * Handles can be freed in any order, and not
1259                  * necessarily linear. So we need to count
1260                  * all non-zero handles.
1261                  */
1262                 if (atomic_read(&adev->uvd.inst->handles[i]))
1263                         used_handles++;
1264         }
1265
1266         return used_handles;
1267 }